October Weather in Mercedes, Costa Rica

Last updated: August 23, 2025

In October, the average temperature in Mercedes, Costa Rica hovers around 20°C (68°F), offering a pleasant climate for outdoor activities. You can expect temperatures to range from a minimum of 12°C (54°F) to a maximum of 26°C (80°F). However, be prepared for some rain, as the region sees an average precipitation of 802 mm (31.6 in) over 30 days. With an average humidity level of 80%, it's a great time to enjoy the lush surroundings!

October Temperature in Mercedes

In October, in Mercedes, the average temperature is 20°C (68°F). Maximums can reach 26°C (80°F) and minimums can be as low as 12°C (54°F). This mild climate makes Mercedes an ideal destination for travelers seeking pleasant weather.

October Weather in Mercedes: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Mercedes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mercedes, October typically has an average temperature of 20°C (68°F), with highs reaching up to 26°C (80°F) and lows dropping to around 12°C (54°F).

Data source: Temperature data for Mercedes generated using information from the Copernicus Climate Change Service.

October Precipitation in Mercedes

In Mercedes in October, the total precipitation amount is 802 mm (31.6 in) over a span of 30 days.

October Precipitation Trends in Mercedes

The chart displays monthly precipitation patterns in Mercedes, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Mercedes, October typically receives around 802 mm (31.6 inches) of precipitation spread over approximately 30 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

October Humidity in Mercedes

In Mercedes in October, humidity is 80%. With an average temperature of 20°C (68°F), this humidity feels like traveling through a warm, dense blanket that clings to your skin, making you feel both sticky and lethargic as you explore the sights.

October Average Humidity in Mercedes

This chart illustrates the average monthly humidity levels in Mercedes, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Mercedes is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Mercedes

In Mercedes in October, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Mercedes, you can check here.

Maximum UV Index Levels in Mercedes for October

The chart shows the monthly maximum UV Index (UVI) for Mercedes in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Mercedes typically reaches 14, which falls under the extreme exposure category.

Data source: Mercedes October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How October Weather in Mercedes Compares to Other Months

Weather in Mercedes varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Mercedes, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Mercedes, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (67°F)	89 mm (3.5 inches)	68%	extreme
February Weather	20°C (68°F)	44 mm (1.8 inches)	68%	extreme
March Weather	20°C (68°F)	57 mm (2.3 inches)	66%	extreme
April Weather	20°C (69°F)	251 mm (9.9 inches)	67%	extreme
May Weather	20°C (69°F)	609 mm (24.0 inches)	69%	extreme
June Weather	20°C (69°F)	568 mm (22.4 inches)	84%	extreme
July Weather	20°C (69°F)	477 mm (18.8 inches)	85%	extreme
August Weather	20°C (68°F)	589 mm (23.2 inches)	82%	extreme
September Weather	20°C (68°F)	536 mm (21.1 inches)	81%	extreme
October Weather	20°C (68°F)	802 mm (31.6 inches)	80%	extreme
November Weather	20°C (67°F)	620 mm (24.4 inches)	80%	extreme
December Weather	19°C (67°F)	191 mm (7.5 inches)	72%	extreme